D day on Nostr: 老蛮搬运 数学很重要，同时越往上，也确实越难。 ...

老蛮搬运

数学很重要，同时越往上，也确实越难。

不会，理解不了，那就是连解题步骤都不知道从哪开始，怎么弄。

好在我们绝大多数人只要会最基础的加减乘除，就足以应付现实中的绝大多数问题。
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